Control of lower incisor inclination with a completely customized lingual appliance for dentoalveolar compensation of class III malocclusion

2013 ◽  
Vol 74 (5) ◽  
pp. 381-396 ◽  
Author(s):  
S. Lossdörfer ◽  
R. Schwestka-Polly ◽  
D. Wiechmann
Keyword(s):  
Class Iii ◽  
Class Iii Malocclusion ◽  
Lower Incisor ◽  
Lingual Appliance ◽  
Incisor Inclination ◽  
Completely Customized Lingual Appliance ◽  
Dentoalveolar Compensation

Class III Malocclusion: Surgery or Orthodontics?

1992 ◽  
Vol 19 (1) ◽  
pp. 21-24 ◽  
Author(s):  
W. J. S. Kerr ◽  
S. Miller ◽  
J. E. Dawber
Keyword(s):  
Orthognathic Surgery ◽  
The Other ◽  
Threshold Values ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Lower Incisor ◽  
Lateral Cephalograms ◽  
Pre Treatment ◽  
Incisor Inclination

The pre-treatment lateral cephalograms of two groups of 20 subjects with severe Class III malocclusions were compared. One group had been considered suitable for orthodontic correction by the diagnosing clinician and the other offered orthognathic surgery. The most significant differences between the groups were in angle ANB, M/M ratio (P < 0·001), lower incisor inclination and Holdaway angle (P < 0·01). Threshold values for angle ANB and lower incisor angulation below which surgery was almost always carried out were—4 and 83 degrees, respectively.

scholarly journals Skeletal Class III Malocclusion with Lateral Open Bite and Facial Asymmetry Treated with Asymmetric Lower Molar Extraction and Lingual Appliance: A Case Report

2021 ◽  
Vol 18 (10) ◽  
pp. 5381
Author(s):  
Vo Truong Nhu Ngoc ◽  
Nguyen Thi Thu Phuong ◽  
Nguyen Viet Anh
Keyword(s):  
Case Report ◽  
Open Bite ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Facial Esthetics ◽  
Lingual Appliance ◽  
Lower Incisors ◽  
Mandibular Incisors ◽  
Molar Extraction

A skeletal Class III malocclusion with open bite tendency is considered very difficult to treat orthodontically without surgery. This case report describes the lingual orthodontic treatment of an adult skeletal Class III patient with mandibular deviation to the left side, lateral open bite, unilateral posterior crossbite, zero overbite and negative overjet. The lower incisors were already retroclined to compensate with the skeletal discrepancy. The patient was treated by asymmetric molar extraction in the mandibular arch to retract the lower incisors and correct the dental midline, with the help of intermaxillary elastics. Lingual appliance was used with over-torqued lower anterior teeth’s brackets to control the torque of mandibular incisors. After a 30-month treatment, satisfactory smile and facial esthetics and good occlusion was achieved. A 12-month follow-up confirmed that the outcome was stable. Asymmetric molar extraction could be a viable option to retract mandibular incisors in Class III malocclusion with lower dental midline deviation.

scholarly journals Orthodontic camouflage treatment using a passive self-ligating system in skeletal Class III malocclusion

2020 ◽  
Vol 53 (4) ◽  
pp. 191
Author(s):  
Fransiska Monika ◽  
Retno Widayati
Keyword(s):  
Orthognathic Surgery ◽  
Treatment Plan ◽  
Treatment Options ◽  
Dental Occlusion ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Facial Profile ◽  
Skeletal Class ◽  
Dentoalveolar Compensation ◽  
Teeth Extraction

Background: The treatment options for adults with skeletal Class III malocclusion can be dentoalveolar compensation, also known as orthodontic camouflage, or orthognathic surgery. Camouflage treatment can be carried out with teeth extractions, distalisation of the mandibular dentition, and use of Class III intermaxillary elastics. However, intermaxillary elastics as anchorage has its own risk–benefit. Purpose: To explain that camouflage treatment with teeth extractions can be performed in a mild to moderate skeletal Class III malocclusion using intermaxillary anchorage with elastics, while minimising the deleterious effects and achieving a satisfactory treatment outcome. Case: Our patient was a 25-year-old female who had a skeletal Class III pattern, with normal maxilla and a protruded mandible. She had a straight facial profile with a Class III canine and molar relationship on her right and left sides. Anterior crossbite was also present with crowding on both the maxilla and the mandible. Case Management: The treatment plan was carried out with dentoalveolar compensation by extracting teeth. Extraction of the lower first premolars was conducted to eliminate the crowding and correct the anterior crossbite. The mandibular incisors were retroclined and the maxillary incisors were proclined with dentoalveolar compensation. Passive self-ligating system was used with standard torque prescription, intermaxillary anchorage, and no additional appliances for anchorage control. Class I canine and incisor relationship were both achieved at the end of the treatment, while maintaining the Class III molar relationship. Conclusion: Orthodontic camouflage treatment in an adult patient using a passive self-ligating system and intermaxillary anchorage can improve facial profile and improve dental occlusion.

scholarly journals Lower incisor dentoalveolar compensation and symphysis dimensions in class II and class III patients

2014 ◽  
Vol 1 (2) ◽  
pp. 20 ◽  
Author(s):  
Maryam Maniyar ◽  
Ajit Kalia ◽  
Ashwith Hegde ◽  
Raja Ganesh Gautam ◽  
Nasim Mirdehghan
Keyword(s):  
Class Ii ◽  
Class Iii ◽  
Lower Incisor ◽  
Dentoalveolar Compensation

scholarly journals Lower incisor dentoalveolar compensation and symphysis dimensions among Class I and III malocclusion patients with different facial vertical skeletal patterns

2013 ◽  
Vol 83 (6) ◽  
pp. 948-955 ◽  
Author(s):  
Núria Molina-Berlanga ◽  
Jaume Llopis-Perez ◽  
Carlos Flores-Mir ◽  
Andreu Puigdollers
Keyword(s):  
Negative Correlation ◽  
Alveolar Bone ◽  
Principal Component ◽  
Class I ◽  
X Rays ◽  
Class Iii ◽  
Lower Incisor ◽  
Mandibular Symphysis ◽  
Mandibular Plane ◽  
Dentoalveolar Compensation

ABSTRACT Objective: To compare lower incisor dentoalveolar compensation and mandible symphysis morphology among Class I and Class III malocclusion patients with different facial vertical skeletal patterns. Materials and Methods: Lower incisor extrusion and inclination, as well as buccal (LA) and lingual (LP) cortex depth, and mandibular symphysis height (LH) were measured in 107 lateral cephalometric x-rays of adult patients without prior orthodontic treatment. In addition, malocclusion type (Class I or III) and facial vertical skeletal pattern were considered. Through a principal component analysis (PCA) related variables were reduced. Simple regression equation and multivariate analyses of variance were also used. Results: Incisor mandibular plane angle (P &lt; .001) and extrusion (P  =  .03) values showed significant differences between the sagittal malocclusion groups. Variations in the mandibular plane have a negative correlation with LA (Class I P  =  .03 and Class III P  =  .01) and a positive correlation with LH (Class I P  =  .01 and Class III P  =  .02) in both groups. Within the Class III group, there was a negative correlation between the mandibular plane and LP (P  =  .02). PCA showed that the tendency toward a long face causes the symphysis to elongate and narrow. In Class III, alveolar narrowing is also found in normal faces. Conclusions: Vertical facial pattern is a significant factor in mandibular symphysis alveolar morphology and lower incisor positioning, both for Class I and Class III patients. Short-faced Class III patients have a widened alveolar bone. However, for long-faced and normal-faced Class III, natural compensation elongates the symphysis and influences lower incisor position.

Extreme dentoalveolar compensation in the treatment of Class III malocclusion

2005 ◽  
Vol 128 (6) ◽  
pp. 787-794 ◽  
Author(s):  
Guilherme Janson ◽  
José Eduardo Prado de Souza ◽  
Flávio de Andrade Alves ◽  
Pedro Andrade ◽  
Alexandre Nakamura ◽  
...  
Keyword(s):  
Class Iii ◽  
Class Iii Malocclusion ◽  
Dentoalveolar Compensation

scholarly journals Changes in smile morphometric indices following maxillary advancement and mandibular setback surgery in skeletal Class III patients

2019 ◽  
Vol 18 (2) ◽  
pp. 216-221
Author(s):  
Fahimeh Farzanegan ◽  
Farzin Hearvi ◽  
Mandana Karrari ◽  
Hooman Shafaee ◽  
Touraj Vaezi ◽  
...  
Keyword(s):  
Medical Science ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Lower Incisor ◽  
Skeletal Class ◽  
Mandibular Setback ◽  
Post Surgery ◽  
Maxillary Advancement ◽  
Significant Difference ◽  
Mandibular Setback Surgery

Objectives: The aim of this study was to evaluate the changes in smile morphometric indices following maxillary advancement and mandibular setback surgery in patients with skeletal class III malocclusion. Materials and Methods: Smile morphometric indices were measured on frontal rest and smile photographs of 15 female patients with skeletal Class III malocclusions before and three months after maxillary advancement and mandibular setback surgery. Pre- and post-surgery measurements were compared. Results: The amount of left and right commissural height, philtrum height, and maximum upper incisor show at rest did not change significantly three months after surgery (p>0.05). The amount of maximum upper and lower incisor show, interlabial gap, smile width and index, buccal corridor ratio, gingival display, and smile arc on the frontal smile photographs didn’t showstatistically significant difference before and after surgery (P>0.05). Conclusion: Orthognathic surgery in patients with skeletal Class III malocclusion had no significant effect on rest and smile parameters from the frontal view. Bangladesh Journal of Medical Science Vol.18(2) 2019 p.216-221

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